Timeline for Why was the neutrino thought to be massless?
Current License: CC BY-SA 4.0
10 events
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| Jun 27 at 2:54 | comment | added | Michael Levy | In my opinion this answer would be improved if it did two things: answer the question in the one interpretation of the question AND also answer the question in the other interpretation of the question. As is, it seems like only half useful | |
| Jun 11, 2021 at 22:24 | comment | added | Criticize SE actions means ban | @ProfRob The title says: why were they thought to be massless? But the main question says: why were they thought to be massless, if they carried momentum, and mass is required for momentum? | |
| Jun 11, 2021 at 17:49 | comment | added | StephenG - Help Ukraine | @ProfRob We clearly have different understandings of what the OP asked. I don't think they asked why the neutrino was thought to be massless, but why it could be considered massless if massless particles did not carry momentum. Personally I up-voted Andrew Steane's answer. | |
| Jun 11, 2021 at 17:26 | comment | added | ProfRob | What you've said isn't wrong, it just doesn't address the main Q at all. Neutrinos were considered to be massless and it isn't because of a misunderstanding of SR. | |
| Jun 11, 2021 at 17:21 | comment | added | StephenG - Help Ukraine | @ProfRob It addresses the OP's misconception that massless particles do not carry momentum, which is the misconception preventing them from accepting (as I read the question) that the neutrino conserved momentum in certain reaction. | |
| Jun 11, 2021 at 16:11 | comment | added | ProfRob | How does this answer "Why was the neutrino thought to be massless?" Inexplicable. | |
| Jun 9, 2021 at 14:14 | history | edited | StephenG - Help Ukraine | CC BY-SA 4.0 |
Typo
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| Jun 9, 2021 at 9:11 | comment | added | md2perpe | Photons are the best known example of this. They travel at the speed of light and carry both energy and momentum, though having no (rest) mass. | |
| Jun 9, 2021 at 8:56 | comment | added | TonyK | The point is, all massless particles travel at the speed of light. This is what gives them non-zero momentum. | |
| Jun 8, 2021 at 21:36 | history | answered | StephenG - Help Ukraine | CC BY-SA 4.0 |